diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2023-12-04 12:13:26 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-12-06 18:45:17 -0800 |
| commit | 94da54d582e6866a9613514b59f326456e88446d (patch) | |
| tree | b590ea183be02b638718757b58ba33ca69eca3e0 /fs/xfs/xfs_sysfs.c | |
| parent | e14293803f4e84eb23a417b462b56251033b5a66 (diff) | |
xfs: document what LARP means
Christoph requested a blurb somewhere explaining exactly what LARP
means. I don't know of a good place other than the source code (debug
knobs aren't covered in Documentation/), so here it is.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_sysfs.c')
| -rw-r--r-- | fs/xfs/xfs_sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index a3c6b1548723..871f16a4a5d8 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -229,6 +229,15 @@ pwork_threads_show( } XFS_SYSFS_ATTR_RW(pwork_threads); +/* + * The "LARP" (Logged extended Attribute Recovery Persistence) debugging knob + * sets the XFS_DA_OP_LOGGED flag on all xfs_attr_set operations performed on + * V5 filesystems. As a result, the intermediate progress of all setxattr and + * removexattr operations are tracked via the log and can be restarted during + * recovery. This is useful for testing xattr recovery prior to merging of the + * parent pointer feature which requires it to maintain consistency, and may be + * enabled for userspace xattrs in the future. + */ static ssize_t larp_store( struct kobject *kobject, |